There is the Exceptional circumstances element
Exceptional circumstances (Non-functional descriptors)
There are a small number of cases where the claimant could carry out all the activities in the assessment, but would still qualify for Employment and Support Allowance, either limited capability for work if either of the following criteria apply or limited capability for work related activity if only the second one applies.
The circumstances when this would apply are:
A claimant is suffering from a severe life threatening disease in relation to which –
i) there is medical evidence that the disease is uncontrollable, or uncontrolled, by a recognised therapeutic procedure, and
ii) in the case of a disease that is uncontrolled, there is a reasonable cause for it not to be controlled by a recognised therapeutic procedure
A claimant is suffering some specific disease or bodily or mental disablement and, by reasons of such disease or disablement, there would be a substantial risk to the mental or physical health of any person if the claimant were found not to have limited capability for work.
The evidence available to the decision maker will include advice from the approved healthcare professional.
A guide to Employment and Support Allowance – The Work Capability Assessment
_________________IMPORTANT FILES TO HELP UNDERSTAND HOW ESA WORKSThe Full Facts ESA50 Claim form and Guide (pdf download)
This guide is the most important file at site.including what illnesssess do not have to attend a medical
ESA SUPPORT GROUP CRITERIA
viewtopic.php?f=7&t=321What to write if you think you should have a home visit